請問premise和assumption的區別? (<--大牛請進)

kerker2

一直有個困惑  希望大牛們能幫我分析一下

不知在一般的CR中.. premise和assumption的差別在那兒?

看mindfree大牛的心經中提到: premise用來支持sub-conclusion, assumption用來支持final conclusion

而sub-conclusion是用來服務final conclusion的

這是指用出現的位置或邏輯關係來判斷嗎?  每篇文章中都會有這些元素嗎?

如果以OG10th-12為例

12. The fewer restrictions there are on the advertising of legal services, the more lawyers there are who advertise their services(premise A), and the lawyers who advertise a specific service usually charge less for that service than lawyers who do not advertise.(premise B) /Therefore, if the state removes any of its current restrictions, such as the one against advertisements that do not specify fee arrangements(C1), overall consumer legal costs will be lower than if the state retains its current restrictions(C2).(fianl conclusion)

 

Which of the following, if true, would most seriously weaken the argument concerning overall consumer legal costs?

A. The state has recently removed some other restrictions that had limited the advertising of legal services.

B. The state is unlikely to remove all of the restrictions that apply solely to the advertising of legal services.

C. Lawyers who do not advertise generally provide legal services of the same quality as those provided by lawyers who do advertise.

D. Most lawyers who now specify fee arrangements in their advertisements would continue to do so even if the specification were not required.
        

E. Most lawyers who advertise specific services do not lower their fees for those services when they begin to advertise.
            

答案E

我是這樣推的 不知降分析是否合理?

前提A+前提B-->結論C(C1-->C2)  

weaken是用final conclusion中充分條件(C1)成立  必要條件(C2)可以不成立

那這題裡面就不會出現assumption和sub-conclusion了嗎?

想請大家幫忙解惑一下 謝謝~~ 

wycg

顶一下.请大家(特别是正在背考的CDER)来讨论一下.对大家都是一个提高.

苞米

这种区分就好像区分走路先迈哪一条腿---'cause they are just the same. I have been studying GRE, LSAT and now GMAT since 8 years ago and got pretty decent scores for the first two, and I don't see any practical difference between premise and assumption. Should there be any, Kaplan would have told you long long time ago. So do you think this 大牛 is better than Kaplan? (Kaplan is the most prestigious test preparation orginzation across the country)

wycg

楼主能不能把mindfree 那篇文章贴上来.大家看看是针对哪些情况来讲的.

hzhangnj

premises:
1 a : a proposition antecedently supposed or proved as a basis of argument or inference specifically : either of the first two propositions of a syllogism from which the conclusion is drawn b : something assumed or taken for granted : PRESUPPOSITION
2 plural : matters previously stated specifically : the preliminary and explanatory part of a deed or of a bill in equity
3 plural [from its being identified in the premises of the deed] a : a tract of land with the buildings thereon b : a building or part of a building usually with its appurtenances (as grounds)

assumption:
5 a : an assuming that something is true b : a fact or statement (as a proposition, axiom, postulate, or notion) taken for granted

sdcar2010

an assumption is an UNSTATED premise.

NautilusW

楼上回答得太妙了